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/*
* mdio-boardinfo - Collect pre-declarations for MDIO devices
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include "mdio-boardinfo.h"
static LIST_HEAD(mdio_board_list);
static DEFINE_MUTEX(mdio_board_lock);
/**
* mdiobus_setup_mdiodev_from_board_info - create and setup MDIO devices
* from pre-collected board specific MDIO information
* @mdiodev: MDIO device pointer
* Context: can sleep
*/
void mdiobus_setup_mdiodev_from_board_info(struct mii_bus *bus)
{
struct mdio_board_entry *be;
struct mdio_device *mdiodev;
struct mdio_board_info *bi;
int ret;
mutex_lock(&mdio_board_lock);
list_for_each_entry(be, &mdio_board_list, list) {
bi = &be->board_info;
if (strcmp(bus->id, bi->bus_id))
continue;
mdiodev = mdio_device_create(bus, bi->mdio_addr);
if (IS_ERR(mdiodev))
continue;
strncpy(mdiodev->modalias, bi->modalias,
sizeof(mdiodev->modalias));
mdiodev->bus_match = mdio_device_bus_match;
mdiodev->dev.platform_data = (void *)bi->platform_data;
ret = mdio_device_register(mdiodev);
if (ret) {
mdio_device_free(mdiodev);
continue;
}
}
mutex_unlock(&mdio_board_lock);
}
/**
* mdio_register_board_info - register MDIO devices for a given board
* @info: array of devices descriptors
* @n: number of descriptors provided
* Context: can sleep
*
* The board info passed can be marked with __initdata but be pointers
* such as platform_data etc. are copied as-is
*/
int mdiobus_register_board_info(const struct mdio_board_info *info,
unsigned int n)
{
struct mdio_board_entry *be;
unsigned int i;
be = kcalloc(n, sizeof(*be), GFP_KERNEL);
if (!be)
return -ENOMEM;
for (i = 0; i < n; i++, be++, info++) {
memcpy(&be->board_info, info, sizeof(*info));
mutex_lock(&mdio_board_lock);
list_add_tail(&be->list, &mdio_board_list);
mutex_unlock(&mdio_board_lock);
}
return 0;
}
EXPORT_SYMBOL(mdiobus_register_board_info);
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